Merge #382

382: impl Format for Infallible r=jonas-schievink a=japaric



Co-authored-by: Jorge Aparicio <jorge.aparicio@ferrous-systems.com>

Author: bors[bot]

src/impls.rs

@@ -450,3 +450,11 @@ mod if_alloc {
         }
     }
 }
+
+impl Format for core::convert::Infallible {
+    #[inline]
+    fn format(&self, _: Formatter) {
+        // type cannot be instantiated so nothing to do here
+        match *self {}
+    }
+}